Cash register and accounting



Get. 16, 1951 ZURBUCHEN 2,571,645

CASH REGISTER AND ACCOUNTING MACHINE Filed 001 16, 1947 4 Sheets-Sheet lMOTOR 3nventor LOUIS E. ZURBUCHEN BY' w HIS (Ittomeg,

Oct. 16, 1951 ZURBUCHEN 2,571,645

CASH REGISTER AND ACCOUNTING MACHINE Filed Oct. 16, 1947 4 Sheets-Sheet2 3 for LOUIS E. ZUR HEN 23 BY KM/a HIS Gttorneg Oct. 16, 1951 L. E.ZURBUCHEN 2,571,645

CASH REGISTER AND ACCOUNTING MACHINE Filed Oct. 16, 1947 4 Sheets-Sheet3 Bnnentor LOUIS E. ZURBUCHEN HIS (Ittorneg L. E. ZURBUCHEN CASHREGISTER AND ACCOUNTING MACHINE Oct. 16, 1951 4 Sheets-Sheet 4 FiledOct. 16, 1947 FIG. 6

Smaentor LOUIS E. ZURBUCHEN BY v HIS (Iltorneg Patented Oct. 16, 1951CASH REGISTER AND ACCOUNTING MACHINE Louis Emile Zurbuchen, Zurich,Switzerland, as-

signor to The National Cash Register Company, Dayton, Ohio, acorporation of Maryland Application October 16, 1947, Serial No. 780,244In Switzerland September 8, 1944 Section 1, Public Law 690, August 8,1946 Patent expires September 8, 1964 1'7 Claims.

This invention relates to improvements in differential mechanisms forcash registers and accounting machines, and particularly to machineshaving indicator and type wheel setting mechanisms.

The principal object of the invention is to provide a difierentialmechanism for entering amounts into accumulators, and simultaneouslysetting type carriers and indicators, in which the time in the machinecycle during which the type carriers and indicators are set is longerthan in similar mechanisms known in the prior art, to slow the movementsof the indicators and type carriers to a minimum speed.

A specific object of the invention is to provide a mechanism for settingindicators at a minimum speed, to prevent whipping the indicators andresulting damage thereto.

Another object of the invention is to provide a differential mechanismwith a plural beam construction to set indicators and type carriers,which beam mechanism starts setting the indicators immediately thedifferential is arrested by the manipulative devices controlling it,thus allowing a maximum of time during the machine cycle for setting theindicators, which results in a slower operating indicator settingmechanism.

Another object of the invention is to provide a differential mechanismfor setting indicators and type carriers with two beams, connectedtogether at one end to provide a floating pivot, one beam beingconnected to a diiferentially settable member and the other beam beingconnected. to the indicator setting member, whereby the beams can beactuated immediately the differentially settable member is positionedunder control of the keyboard of the machine.

Another specific object of the invention is to provide a diiferentialmechanism having a twopart settable member differentially settable undercontrol of the keyboard, one part of which is locked to set position tostart control of the setting of the indicator immediately upon beingset, and while the other part is restored to normal position forentering amounts into the accumulator, to thereby give added time duringthe machine cycle for reducing the speed of setting the indicator intoits new position.

With these and incidental obiects in view, the invention includescertain novel features of construction and combinations of parts, theessential elements of which are set forth in appended claims andpreferred forms or embodiments of which are hereinafter described withreference to the drawings which accompany and form a part of thisspecification.

Of said drawings:

Fig. 1 is a cross-sectional view through a machine having an arcuatekeyboard and shows one form of the diiferential mechanism.

Fig. 2 is a cross-sectional view of a machine having a fiat keyboard,and shows another form of the differential mechanism.

Fig. 3 is an enlarged view of the difierential mechanism similar to thatshown in Fig. 1.

Figs. v4, 5 and 6, each show enlarged views of modified forms of thedifferential mechanism shown in Fig. 2.

GENERAL DESCRIPTION Cash registers and accounting machines are usuallyprovided with printing and indicating means, which are set to indicatethe amount entered. into or taken from the accumulators of the machine,or to indicate any other data. The indicators must indicate the amountregistered after the machine has come to rest and until the next machineoperation. Cash registers and acmounting machines are fast operatingmachines and. are required to perform many functions. For these reasons,the time during a machine cycle which can be allotted to setting theindicator is very short, and in many machines is as little as .2 of theentire cycle. This shortness of time results in a very rapid operationof the indicator when being set and when moved to its greatest extentresults in whipping to the extent that frequent damage is caused to theindicator. This is particularly so when large indicator wheels are used,where the momentum of the indicator reaches an undesirable acceleration.In the past, damage to indicators has been avoided by certainexpedients, such using springs to snub the indicators and thereby reducethe shock thereof when coming to a sudden stop, or by reducing thediameter of the indicator itself.

In some indicator mechanisms the indicator is returned to a zero, orhome position, before being set. into a new position. This type ofsetting requires a sudden stop and reversal of movement after theindicator reaches the zero or home position. The sudden stop andreversal of direction of movement place a great strain on the settingelements, often resulting in damage to the parts.

In indicator setting mechanisms herebefore known, a limit on the size ofindicator wheels which can be used is necessary, since the greater thediameter the greater the momentum and the force resulting therefrom, allof which causes greater strain on the setting mechanism.

The differential setting mechanism, which comprises the presentinvention controls a novel indicator setting mechanism, which can beginto function immediately the preliminary setting under control of thekeyboard devices has been completed. This allows a greater period oftime during the machine cycle for setting the indicator into its newposition and results in a much slower movement thereof. The indicatorcan be set simultaneously with the performance of other functions of themachine, such as adding the amounts into accumulators. In some machinesit is necessary to complete the setting of the indicators before theamounts are added in the machine. In other machines it is necessary toset the indicators after the amounts are entered in the accumulators. Ineither event, the time for setting the indicators in such machines isvery short, by reason of said sequential operations.

In the invention herein disclosed, the actuator for the accumulator is aspring actuated element which is an element separate from the controlmember for controlling indicator setting. Both the actuator and thecontrol member are set under control of the keyboard devices at the sametime. Since the accumulator actuator is spring driven, the indicatorcontrol member can be locked in the position to which it is set undercontrol of the keyboard devices immediately after it is set andthereafter the accumulator actuator can be restored home. From this timeon the two mechanisms function independently of each other so that theycan operate simultaneously. The accumulator actuator can be restoredhome to enter amounts into the accumulator at the same time that theindicator control member is held in its controlling position.

DETAILED DESCRIPTION In the form of the invention disclosed in Fig. 1, adiiferential amount actuator I0, pivoted on a shaft I I, is controlledin its differential movement by a bank of keys I2, slidably mounted inthe key frame I3, carried by a pair of shafts I4. The shafts I 4 aresupported by the side frames I 5 of the machine. A zero stop pawl I6 isprovided to arrest the differential actuator In in its zero positionwhen no key I2 is depressed in the key bank. V

The usual detents for holding the keys I2 depressed during the machineoperation, and springs for returning the keys to their normal positionsat the end of the machine operation,

are provided, all as is'well known in the art.

The actuator I0 is provided with a stop lug I! which engages either'thezero stop pawl I6, or the end of a depressed key I 2, during the machineoperation. The actuator I0 is normally urged in -a counter-clockwisedirection by a spring I8, one

end of which is connected to a stud I9 on the actuator III, and theother end is connected to a shaft 20. The actuator I 0 is normallyrestrained in the position shown in Fig. '1 by a universal rod 2|,carried by a pair of arms '22, supported on the shaft II. At thebeginning of the machine operation the shaft I I is rocked, in a mannerwell known in the art, from the main cam shaft of the machine (notshown) to rock in the rod 2|, in a counter-clockwise direction to aposition shown by dot and dash lines in Fig. 1. Counter-clockwisemovement of the rod 2| releases the actuator I 0 to the action of thespring l8 until the lug I'I engages either the zero stop pawl I6, or theend of the depressed key I2. After the actuator ID has been positionedunder control of the depressed key a totalizer element 23 is engagedwith the actuator II] in a manner well known in the art. Four totalizers23 are illustrated, any one or more of which may be engaged with theactuator l I] for receiving entries from the actuators I 0. After thetotalizer 23 has been engaged with the actuator It, the universal rod 2Iis restored to its normal or full-line position (Fig. 1), during whichtime the amount represented by the differential setting of the actuatorI0 is entered into the selected totalizer element 23. 7

Associated with the differential actuator I0 is an indicator settingcontrol member '24, having a flange 25 normally held in engagement witha shoulder formed on the differential actuator II], by a spring I25. Thespring I25 is stretched between a stud on the differential actuator Illand a stud on the indicator control member 24. During thecounter-clockwise movement of the actuator II], when being set undercontrol of the keys, the differential actuator I0 carries thedifferential control member 24 therewith to position the indicatorcontrol member into a position commensurate with the setting of thedifferential actuator I0.

Pivotally mounted on a stud 26, carried by the indicator setting controlmember 24, is a beam 21 having an anti-friction roller 28 on its freeend. The roller 28 projects into a slot 29 of a second beam 30 pivotedon a stud 3I, carried by an indicator setting segment 32, also pivotedon shaft II. The indicator setting segment 32 is provided with teeth inmesh with a pinion 33 mounted on the side of the indicator drum 34,rotatably mounted on the shaft 35.

The indicator setting segment 32 is also provided with teeth meshingwith a pinion 36 carried on one end of a sleeve 31, carried by a shaft38, which sleeve and shaft project into the printer section of themachine (not shown) and has secured thereto a type element for settingup the amount being entered into the totalizer element 23 in the mannerwell known in the art.

The indicator setting control member 24 is provided with looking teeth39, and the indicator setting member 32 is provided with locking teeth40. Normally, that is, when the machine is at rest, a locking member Mis in engagement with the teeth 40 of the indicator setting segment 32.The locking member 4| is carried by a pair of arms 42 on the beforementioned shaft 20. During the machine operation, immediately thedifferential actuator I0 has been adjusted differentially under controlof the keys I2, or the zero stop I6, the locking member M is disengagedfrom the'teeth 40, and moved into engagement with the teeth 39 of theindicator setting control member to lock the indicator setting controlmember 24 in its adjusted position. The width of the locking member M issuch that it enters the teeth 39 before becoming entirely disengagedfrom the teeth 40. Immediately after the indicator setting "controlmember 24 has been locked by the locking member 4 I, the universal rod2| is restored to its home position, to restore the differentialactuator ID to its normal position in the manner above described. Atthis time the spring I25 is stretched to place tension on the controlmember 24 so that later, during the machine operation, when the lockingmember 4| is disengaged from the teeth 39, the spring I2 5 restores theindicator control member into its home position where the flange 25again comes into contact with the shoulder of the differential actuatorID.

Mounted on a rock shaft 43 is a pair of arms 44 carrying a rod 45 forengaging the beams 21 and 3D for setting the indicator setting member inaccordance with the positioning of the indicator setting control member24. Immediately after the indicator setting control member 24 is lockedin its set position by the locking member 4|. the rod 45 is rockeddownwardly and during this movement engages the beams 21 and 30, androcks both beams around their respective pivots 25 and 3| unti1 thecentral parts thereof are brought into contact with a collar on theshaft Bringing of the beams 21 and 30 into contact with the collar onthe sha t moves the beams into coincident relationship to simultaneouslyadjust the indicator setting segment 32 in accordance with the positionof the indicator setting control member 24.

After the indicator setting member 32 has been positioned by the beams21 and 3%, the locking member 4| is disengaged from the tooth 35 and isenga ed with tooth M of the indicator setting mechanism, thus holdingthe indicator 34 in its' newly set position until the next operation ofthe machine.

As before mentioned the indicator drum 34 remains in the position towhich it was last set until a new amount is entered into the machine.Where the new amount entered is different from the amount standing onthe indicator drum, it will be necessary to translate thecounter-clockwise movement of the indicator control setting member 24into either a similar directional, or an opposite clockwise, movement ofthe indicator setting member 32, according to whether the amount isgreater or less than said amount standing on the indicator.

In Fig. 1 the indicator control setting member 24 is shown in normalposition, but the indicator setting member 32 is shown in such aposition that the numeral 5 on the drum 34 is disclosed through thewindow in the machine casing, and a fifth tooth 40 from the right-handend of the indicator setting member 32, is engaged by the locking member4|, the teeth 46, from right to left, corresponding to digits 1 to 9,and the last tooth to the left representing zero indication.

If in the next operation of the machine the new amount enteredcorresponds to that standing on the indicator, that is, 5 in the presentinstance, the indicator control setting member 24 will rotatecounter-clockwise to a position corresponding to that of the actuatorl0, and will then be locked in this position by the locking member 4|,in the manner before described. As the indicator control setting memberrotates, the pivot 26 descends and thus lowers the beam 21 toward thecollar on the shaft I. In this particular instance, the movement of theindicator control setting member is arrested just as the beam 21 reachesthe collar on the shaft H and is thereby brought into alinement with thebeam 30. Thus,

when the rod 45 descends, it will contact the nodes of both beams 21 and30 simultaneously, but as both are resting on the collar on the shaft N,no movement of either beams or the indicator drum will take place.

In regard to the entry of new amounts into the machine in excess of theamount being displayed by the indicator drum 34, and also for the zeroindication, it is arranged that consequent on movement of the indicatorcontrol setting member 24 to accord with the setting of the actuator ID,the node of the beam 21 is adjusted to various heights above the node ofthe beam 30 depending on the value of the digit, or whether it is zero.

In the particular example illustrated, if the new indication is to bezero, the keys |2 will all be normal and there will be no effectivemovement of the actuator It or indication control setting member 24,when the machine is operated, the actuator being held by the zero stopHi. In consequence, when the rod 45 descends, it will encounter the nodeof the beam 21 and press the beam down onto the collar on the shaftDuring this downward movement of the beam 21 the roller 28. through theslot 29, exerts a clockwise turning movement on the beam 30 about therod H, which movement is also imparted to the indicator setting member32 to set the indicator drum to display a zero through the window in themachine casing. The locking member 4| thereafter ascends to engage thefinal tooth 40 to the left of the member 32 to lock the latter in zeroposition.

In the event of the uppermost key l2 corresponding to digit 9 beingdepressed, on the machine operation the actuator l0 and indicatorcontrol setting member 24, will take one step counter-clockwise from thenormal position as shown, and in consequence the small movement of thepivot 25 of the beam 21, will cause the beam to descend to an equivalentextent, that is, to a lower position than that occupied when theindicator drum was to be set to zero. Therefore, the extent of thedownward movement of the beam 21, on depression thereof by the rod 45will cause the indicator setting member 32 to be rotated in a clockwisedirection to an extent suflicient to rotate the indicator drumcounter-clockwise to a position where the digit 9 will be displayed inthe window of the machine casing.

In view of the foregoing, the manner in which the indicator drum is setto display digits 6, '1, and 8, will be obvious Without furtherdescription.

Thus it will be seen that where the new digit to be displayed on theindicator drum is greater than that being indicated, the beam 21 will beset to a position higher than the beam 30 relative to the shaft H, and,on the depression of the beam 21 onto the collar surrounding the shaft Hby the rod 45, the indicating-setting member 32 will be rotatedclockwise and the indicator drum counter-clockwise to display the digitcorresponding to the new entry.

The operations involved, where the new amount to be indicated is below5, will now be described.

When the new amount is entered, such as by the depression of the key I2,representing the digit 3 as illustrated, the actuator will rotatecounter-clockwise until it encounters the depressed key, and will befollowed by the indicator control setting member 24. During thecounterclockwise movement of the indicator control setting member 24,the beam 21 will descend until it reaches the collar on the shaftwithout causing any movement of the beam 30. However, on the continueddescent of the pivot 26, as the middle of the beam 21 is prevented fromfurther downward movement by the shaft II, the right hand end of thebeam 21 will be lifted, and in consequence lift the right-hand end ofthe beam 30 so that the beam 30 leaves the collar on the shaft I I andits node rises above the node of the beam 21 to an extent depending uponthe value of the new digit to be displayed on the indicator drum 34.

When the rod 45 descends, it first encounters the node of, and pressesdownwardly the beam 30. As the roller 28 on the beam 21 is held, itforms a pivot for the beam 33, and the latter, therefore rotatescounter-clockwise about this pivot until the beam 33 is pressed onto thecollar surrounding the shaft II whereb further movement is stopped. Thecounter-clockwise movement of the beam 30 is imparted, through the pivotstud 3I to the indicator setting member "tion until the next operationof the machine.

Thus it will be seen that, for the adjustment of the indicator drum 34to a position corresponding to a digit of a value lower than that beingindicated, the beam 33 is raised above the beam 21, after movement ofthe latter has been stopped by the shaft I I, to an extent dependingupon the difference between the digits, the subsequent downward movementof the rod 45 depressing the beam 39 to impart a counter-clockwisemovement thereto, which is also imparted to the indicator controlsetting member 24, the indicator drum 34 thereby being rotated clockwiseto a position where the digit representing the new entry is displayed.-

It is to be noted that the positioning of the differential actuator II]under control of the keys I2 positions the control member 24 intoposition commensurate therewith. This movement of these two elements issimultaneous during the setting up movement. After the locking member Mhas engaged the control member 24 it is in position to control thesetting of the indicator 34 and the type wheel setting sleeves 3'!independently of any further movement of the differential actuator I5.Therefore the differential actuator II] can be restored to its homeposition and the amounts entered into the totalizer while the indicatorsand type wheels are being set up. Since it is not necessary to operatethe indicator setting mechanism and the differential actuator at thesame time, more time can be allotted to the setting of the indicatorduring the machine operation, and therefore the rod 45 can be moved witha minimum of speed and this operation resulting in a slower settingmovement of the indicator 34. This slower movement is obtained byproviding indicator setting mechanism which is controlled and operatedentirely independent of any other functions of the machine. This slowingdown of the speed of setting the indicator is also obtained by providingthe two beams, by means of which the resulting movement is appreciablyslowed down.

Figure 3 shows an enlarged view of the form of differential mechanismdisclosed in Fig. 1, of a slightly modified construction. In thismodification the lug II of the differential actuator is normachine.

mally engaged by a lug 46 on the indicator setting control member 24.The spring I25 is stretched to maintain the shoulder 46 against the lugI I when a, machine is in its normal or home position. Differentialadjustment of the differential actuator I0 causes the lug II, engagingthe shoulder 46, to carry the differential setting control member 24into the position controlled by a depressed key. At the beginning of themachine operation, the locking member 4| is engaged with the liner tooth39 to lock the indicator setting control member 24 and control theadjustment of the indicator 34 and the type carriers in the mannerdescribed for the form of invention shown in Fig. 1. Near the end of themachine operation, when the locking member 4| is disengaged from thetooth 39 and into engagement with a tooth 4f], the spring I25 returnsthe indicator setting control member 24 into positions in which theshoulder 46 again engages the lug II.

From the above it is clear that the setting of the'indicator by the formof the invention of Fig. 3 is accomplished in exactly the same manner asdescribed above for the form of invention disclosed in Fig. 1, the onlydistinction between the two forms of the invention being in theconnections between the difierential actuator I 0 and the indicatorcontrol member 24. The structural difference between Fig. 3 and Fig. 1forms, resides primarily in the control point between the setting of theindicator control member 24. In Fig. 3 form, the control member isprovided with a shoulder 46 which engages with the flange I'I, whereasin Fig. 1 the flange 25 engages a, surface on the differential settingsegment I0. Otherwise the two mechanisms operate in identically the samemanner.

Modified form-flat keyboard In the form of the invention shown in Fig.2, the invention is shown applied to a machine having a flat keyboard.The differential actuator 50 (Fig. 2) is slidably mounted on two rods5|, and is controlled in its differential movement by a bank of keys 52carried by the framework of the The differential actuator 53 is providedwith a stud 53 projecting into a slot 54 of a lever 55 slotted at itslower end to pivot on, and slide on, a rod 55. The upper end of thelever 55 is provided with a stud 5I, which is guided along the path ofthe ends of depressed keys 52 by a slot 58 formed in the key frame 59. Azero stop pawl 30 arrests the lever 55 in a zero position. A spring 6|attached to a stud on the machine frame at one end, and to a stud B2 onthe differential actuator 58 at its other end acting through the stud53, normally maintains the lever 55 in engagement with universal rod 63.The universal rod 63 is carried on a plurality of arms 64 secured to theshaft 35. Upon operation of the machine, mechanism not shown moves theuniversal rod 63 causing the lever 55 to follow the universal rod untilthe stud 5? at the upper end thereof engages either the zero stop pawl53, or the depressed key 52. This differentially positions the totalizeractuator 53 into a position commensurate with the Value of the key 52which is depressed.

After the differential actuator 50 has been differentially positionedone or more of the totalizers B5 are engaged with the teeth of theactuator 53, whereupon the universal rod 63 is restored to its full-lineposition in a clockwise direction, which, acting through the lever 55and stud 53, restores the differential actuator 50 into its homeposition. During this return movement of the differential actuator 50,the amounts set thereon are entered into the totalizer wheels 65 whichare engaged therewith.

Mounted on two rods 66, so as to slide thereon, is an indicator settingcontrol member 61. The member 61 is provided with a projection 68, whichis normally held in engagement with a lug 69 on the differentialactuator 50 by a spring 10. When the diiferential actuator 50 is movedduring its initial movement, the indicator control member 61 ispositively positioned therewith so as to position the control member 61commensurate with the position into which the differential actuator 58is set under control of a depressed key.

Pivoted on a stud II, carried by the indicator setting conrol member 61,is a beam I2, slotted at its lower end to receive a stud I3 on a secondbeam I4. The beam I4 is pivoted on a stud I5 carried by an indicator andtype wheel setting rack I8. The indicator and type wheel setting rack I6is slidably mounted on a pair of rods 11. The rack I6 is provided withteeth engaging a pinion I8 secured to the side of an indicator 79. Therack I6 is also provided with teeth meshing with a pinion 80 secured tothe end of a sleeve 8|, which projects into the printer section of themachine (not shown) and on which is mounted a type wheel in the usualmanner.

The lower edge of the indicator setting rack I6 is provided with lockingteeth 82 one of which is normally engaged by a locking bar 83. The locking bar 83 remains in looking engagement with a tooth 82 until thedifferential actuator 58 has been set under control of a key 52,whereupon the lockin bar is disengaged from the tooth 82 and moved intoengagement with one of a plurality of teeth 85 provided in the indicatorsetting control member 61, one tooth 85 being provided for each positionof adjustment thereof.

At the beginning of the operation of the machine, when the universal rod63 is rocked in a counter-clockwise direction to release thedifferential actuator 50, for differential adjustment under control ofthe depressed key, the indicator control member 61 is adjusted into acorresponding position. At this time the stud II carrying the upper endof the beam I2 is also positioned into a position commensurate with thesetting of the difierential actuator 58 which has been properly adjustedin accordance with the depressed key and locking bar 83 is moved into acorresponding locking tooth 85, to lock the indicator setting controlmember 61 in its adjusted position. Thereafter the differential rack 50can be restored to its home position at which time the spring I8 istensioned. This return movement of the totalizer actuator 58 isindependent of any subsequent movement of the indicating setting controlelement 61.

After the indicating setting control member 61 is locked in its adjustedposition, a beam operating rod 88 carried by a plurality of arms 81 on ashaft 88 is rocked in a clockwise direction from the full-line positionshown in Fig. 2 to the dot and dash position, during which movement thebeam operating rod 86 picks up the beams I2 or I4, depending upon theposition in which they are at the beginning of the operation of themachine.

In Fig. 2 the indicator setting member I8 is shown in the position wheredigit 1 is displayed by the indicator drum I9.

It will be appreciated that, if there has been no entry on the keys 52,that is, not one thereof has been depressed, on the next operation ofthe machine the indicator control setting member 61 will remain in theposition shown, and the looking bar 83 will descend to engage the finaltooth 85 to the left and lock the member in this position in which thebeam I2 is held against the stop rod 89. Thus the beam I2 is preventedfrom counter-clockwise movement about the stud II thereby holding thestud I3, and thus the lower end of the beam I4, stationary insofar aslateral movement is concerned.

When the beam operating rod 88 is rotated clockwise, to the positionindicated by dot and dash lines, it presses upon the beam I4 to cause itto rotate in a clockwise direction about the stud I3 until it encountersstop rod 89. In consequence, the indicating setting member is moved tothe right the full distance of the length of the rack formed by theteeth 82, thereby to rotate the indicator drum I9 counter-clockwisethrough 344 degrees to bring the facet-bearing cipher O opposite thewindow of the machine.

In the event of one of the keys 52 being depressed, the indicatorcontrol setting member 61 will be set to a position commensuratetherewith and in consequence the beam I2 will be moved to the left to anequivalent extent away from the stop rod 89, the beam I2 pivoting aboutthe stud 73 which is fixed by reason of the beam 14 being held againstthe operating rod 88 in its normal position.

When the operating rod 86 is rotated in a clockwise direction it causesthe beam 14 to rotate about its pivot in a counter-clockwise direction,the pin 13 thereby moving in an upward arcuate path and by itsengagement with the slot in the beam 72 causes the latter to rotateabout its pivot II also in a counter-clockwise movement.

Thus both beams rotate freely, the lower ends moving toward the rightuntil the beam I2 is brought into contact with the stop rod 89,whereafter the lower end of this beam fixes the axis of rotation of thestud I3.

During the continued movement of the operating rod 86, the beam Id iscaused to rotate about the axis of the stud 13, and in consequence theupper end of the beam moves to the right carrying the indicator-settingmember I6 therewith, the slot in the beam I2 permitting the smalldownward movement of the stud I3. The indicator setting member I6 isthus moved to the right to an extent necessary to rotate the indicatordrum I9 in a counter-clockwise direction to bring the facet thereofbearing a numeral corresponding to the depressed key behind the windowin the machine casing.

It will be noted that if the indicator drum I9 is already displaying adigit corresponding to a key I2 which is depressed, the two beams I2 andI4 will be brought into alinement, and when the beam operating rod 88 isoperated both beams will be moved simultaneously to contact the stop rod89 the extremity of movement of the operating rod, and thus no movementof the indicating control setting member will take place and theindicator drum will remain in its set position.

Obviously, where the indicator drum I9 is set to a position greater than1, but not zero, the beam I4 will occupy a position intermediate betweenthe position as indicated in Fig. 2 and the stop rod 89, whereas in theevent of the existence of a zero indication the beam will be against thestop rod.

Assuming that a key I2 is depressed such as to require a change ofindication, either from zero to a digit or to a digit of lower value,then, when the indicator control setting member 61 is set, the beam I2will move to the left beyond the position occupied by the beam I4.

Thus when the operating rod 86 is moved counter-clockwise on theoperation of the machine, it first encounters the beam I2 and causesthis beam to rotate counter-clockwise about its pivot II, whereby itslower end, through the stud I3 and slot, will move the beam I4 intocontact with the stop rod 89;

As the upper end of beam 12 is fixed, the continued counter-clockwisemovement of the beam by the operating rod 85, through the stud I3, willexert. pressure on the lower end of the beam I4, and the latter,therefore pivots about the stop rod 89, to move its upper end to theleft. This latter movement is imparted to the indicator setting memberI6, which in turn rotates the indicator drum in a clockwise direction totake up a position where a facet bearing a numeral corresponding to thedepressed key I2 is opposite the window in the machine casing.

It should be noted that the restoring movement of the totalizer actuator59 and the actual entering of the amount into the selected totalizerelement 65 is accomplished independently of any movements of theindicator control slide 61. For this reason the beam operating rod 86can begin to operate immediately the control rack 67 is locked in itsadjusted position, without waiting for any further movement of thetotalizer actuator 59 or any other mechanisms which usually are a partof machines of the class to which the invention is shown applied. Theadvantage of this timing and the mechanism is that more time can beallotted to the operation of the beams 12 and 14, thus resulting in aslower setting movement of the indicator I9 and avoiding the objectionsto the usual indicator setting mechanism in which the time allotted forsetting thereof is so short that the indicator must be set at a highspeed and safeguards therein have to be provided to prevent injurythereto.

Modified jorm-Fig. 4

Fig. 4 discloses a modified form of beam mechanism for obtaining thesame results as described for the mechanism shown in Fig. 2. In thisform of the invention the beams 95 and 9 6 corresponding to the beams 72and I9 are pivoted together by a stud 91, thus forming a scissorsaction. The beam 95 is provided with a stud 98, which projects into aslot in the indicator setting slide 16. In this form of the inventionthe differential actuator 56 is positioned in the manner above describedto correspondingly position the indicator control slide 61. Thisprovides a fixed pivotal point II for the beam 9! after the controlslide 61 is locked in its adjusted position by the locking bar 83.

In Fig. 4 the indicator setting member I6 is shown in its extremeleft-hand position where the digit 1 on the indicator drum will bedisplayed through the window of the machine casing. The indicatorcontrol setting member 61, however, is shown in its normal position,which is also the position in which the member is locked on theoperation of the machine in the absence of a depressed key in the keybank. In the latter circumstances, when the beam operating rod 86 isrocked in a counter-clockwise direction, it rotates the beam 96 and stud91 in a similar direction about its pivot stud I I. The movement of thestud 9! is imparted to the beam which pivots upon its line of contactwith the stop rod 89 in a clockwise direction until the lower end of thebeam 96 meets the stop rod and both beams are brought into alinement.The upper end of the beam 95, through the engagement of the stud 98 withthe slot in the indicator setting member I6, moves the latter toward theright, which in turn rotates the pinion I8 secured to the indicator drumin a counterclockwise direction to set the drum to a positioncommensurate with the movement of the member I6, that is, in the examplebeing. described, to display the cipher 0.

The stud 98 and slot connection of the beam 95 and the member I6 permitsfree reciprocal movement of the stud during its arcuate movement.

It will be appreciated that if a digit greater than the digit 1 is beingdisplayed by the indicator drum, the indicator setting member 15 willoccupy a position such that the beam 95 will be disposed at the sameintermediate position between the positions of the rods 86 and 89 asillustrated.

If the value of a new digit entered is greater than that being displayedby the indicator drum, the lower end of the beam 95 will occupy aposition between the beam 96 as set in accordance with the depressed keyand the rod 89, and in consequence when the beam operating rod 86 isrotated counter-clockwise during a machine operation, it will cause thebeam 96 to rotate in a similar direction about its fixed pivot formed bystuds II and freely carry with it the beam 95 through the stud 91 untilthe latter beam contacts the rod 89. On a continued movement of theoperating rod 86 the scissors action of the beams will take place asdescribed above to move the indicator setting member to the right toreset the indicator drum in accordance with the new indication required.

Where the indication being given by the indicator drum is to be changedfrom a higher to a lower digit, and, when the actuator 50 and theindicator control setting member 61 take up positions in accordance withthe keys of the key bank which has been operated, the beams 95 and 96will assume positions opposite to that indicated in Fig. 4, so that theend of the beam 96 will approach more closely to the stop rod 89 thanthe corresponding end of the beam 95.

Thus when the operating rod 36 is rotated in a counter-clockwisedirection it will first engage with the lower end of the beam 95,whereby both beams will be rotated in a counter-clockwise directionuntil. further movement of the beam 96 is stopped by contact with a stoprod 99. The position of the stud 9! therefore becomes fixed, and furthermovement of the rod 86 will cause the beam 95 to rotate in acounter-clockwise movement about the stud 89, whereby the upper end ofthe beam will move the indicator setting member toward the left and inturn rotate the indicator drum in a clockwise direction to the newdisplaying position.

Obviously, in the event of a new entry into the machine being the sameas, that already being indicated on the indicator drum, two beams willbe brought into alinement on the setting of the indicator controlsetting member 61, and on the operation of the operating rod 86 bothbeams will be moved freely simultaneously to the stop rod 89, and thusno change of indication will take place.

Modified formFig. 5

Fig. 5 is another modification of the mechanism shown in Fig. 2, and inwhich the differential actuator 50 also acts as the control member forsetting the indicator. In this form of the invention the diiierentialrack 50 is provided with looking teeth 65, which are engaged by thelocking bar 83 after the differential actuator 50 has been set. In thisform of the invention a stud 91, carried by the beam 66, projects into aslot in the beam 95, to provide an equivalent action to the stud 98engaging the slot in the member 15 (Fig. 4) and the upper end of thebeam 95 is pivoted on a stud 15 in the same manner as shown in Fig. 2.In the operation of the beam mechanism shown in Fig. 5, the result isthe same as that shown and described in Fig. 4, that is, the beamactuating rod 86, which in rocking in a counterclockwise direction,cooperates with the lower ends of the beams 95 and 96 and carries theminto engagement with the fixed rod 89, whereupon the two beams 95 and 96come into coincident relationship with each other to position theindicator setting slide 16 commensurate with the setting of thedifierential actuator 50.

Modified form-Fig. 6

Fig. 6 shows an enlarged view of still another form of beam actuatingmechanism to obtain the same results described above. In this form ofthe invention the diiierential slide I is positioned by a, lever likethe lever 55 (Figs. 2, 3 and 4) having a stud 51, which comes intocontact with the depressed key of the keyboard. The differentialactuator I00 is provided with locking teeth IOI which are engaged by alocking member I02 pivoted on a rod I03 after the difierential actuatorI00 has been positioned according to the value of the key depressed. Thedifferential actuator I00 is provided with an upstanding ear having aslot I 04 into which projects a stud I05 carried on the upper end of abeam I 06 pivoted to the lower end of a'second beam I01 by a stud I03.The upper end of the beam I01 is provided with a stud I00 which projectsinto a slot I I0 of an indicator setting rack III having teeth H2 inengagement with a pinion Il3 carried by the indicator II4.

After the differential actuator I00 has been locked in a set position bythe lock I02 engaging a tooth IIiI, beam operating roller II5 projectinginto circular slots in the beams I06 and I01 is moved in acounter-clockwise direction from the full-line position shown in Fig. 6to the dot and dash line position.

In Fig. 6 the indicator setting rack I I I is shown in its extremeleft-hand position, where the digit 1 is displayed by the indicator drumI I4, and the beam I01 is held against the fixed stop rod IIB.

If no entry has been made by depression of a key in the key bank, on thenext operation of the machine the actuator I00 will be held in theposition shown by, the locking member I02, and the operating rod H5 inmovement in a counterclockwise direction will rotate the beam I06 in aclockwise direction about the axis of the stud I05 carrying the stud inthe lower end of the beam I0! with it. The beam I01 is therefore causedto pivot about its line of contact with the stop rod H6 and the upperend of the beam, through the stud I09, moves the indicator settingmember toward the right thereby to rotate the indicator drum H4 in acounter-clockwise direction. This action continues until the beam I06 isbrought into contact with the stop rod H16 and therefore into alinementwith the beam I01, in which position the indicator drum will display thecipher 0 through the window of the machine casing.

It will be appreciated that when any digit greater than 1 is beingdisplayed on the indicator, the beam I 01 will occupy a positionintermediate the rods H6 and H5, the distance of separation from the rodI I6 dependin on the value of the digit.

For subsequent entries into the machine of digits greater than thatbeing indicated, the beam I06 will be set to a position to the right ofthe beam I01 in the positioning of the actuator I00. In consequence,when the operating rod H5 is rotated in a counter-clockwise direction onthe operation of the machine, it will first contact the beam I06whereafter both beams will rotate in an idle clockwise movement untilthe beam I01 engages with the stop rod II6. As the beam I01 willthereafter be held against further clockwise movement about the axis ofthe stud I09, whilst the beam I06 continues the said movement, theformer beam will pivot about its line of contact with the stop rod II6until the beam I06 meets the latter. The pivoting movement of the beamI01 about the stop rod causes the upper end of the beam to move theindicating setting member to rotate the indicator drum to display thenew digit in the manner above described.

It will be appreciated from the above, that, if the next entry into themachine is in respect to a. digit less than that being indicated, thenthe actuator I00 will assume a position such that the beam I 06 willovertake and pass to the left of the beam I01. Therefore, on theoperation of the operating rod II5 it will first pick up the beam I01and cause this beam to move the beam I06 into contact with the stop rodI I6 and thus position of the stud I08 will become fixed. The continuedmovement of the operating rod I05 will cause the beam I01 to rotate in aclockwise direction about the axis of the stud I08 until the beamcontacts the rod I I6. The upper end of the beam, through the stud I00,will move the indicator setting member toward the left whereby, throughI the rack teeth H2 and the pinion II3, the indicator drum is rotated ina clockwise direction to the extent requisite to display the numeralcorresponding to the key of the key bank which is depressed.

Obviously, if the key of the key bank which has been depressedcorresponds to the digit already being displayed by the indicator drum,on the operation of the machine, the beams I06 and I01 will be broughtinto coincidental relationship on the setting of the actuator, and whenthe rod I I 5 is operated, both beams will move idly and simultaneouslyto the stop rod H6 and therefore no movement of the indicator drum willtake place.

The pin and slot connections I04 and I05 and I09-I I0 provide for freeup and down movement of the beams as the beams are being positioned bythe rod I I5.

In total, or sub-total taking operations, the long tooth of a selectertotalizer determines the positions of the actuator racks in each of themodifications shown, in the manner well known in the art.

While the forms of mechanism herein shown and described is admirablyadapted to fulfill the objects primarily stated, it is to be understoodthat it is not intended to confine the invention to the forms orembodiments herein disclosed, for it is susceptible of embodiment invarious forms all coming within the scope of the claims which fol low;

What is claimed is:

1.- In a differential mechanism for machine of the class describedhaving an indicator and a totalizer, the combination of a totalizeractuator, an indicator setting means, manipulative means settable tocontrol the extent of movement of the actuator, means including twolevers pivoted together, one of said levers pivoted to the actuator andthe other of said levers pivoted to the setting means, means to move theactuator to the position determined by the manipulative means to therebyposition the end of the lever pivoted thereto into a positioncommensurate with the set position of the actuator, and actuating meansto move the levers into positions wherein they are in parallelrelationship with each other, said parallel relationship beingdetermined by the set position of the actuator whereby the setting meansis set into a position commensurate with the set position of theactuator.

, 2. In a differential mechanism for a machine of the class describedhaving an indicator and a totalizer, the combination of a totalizeractuator, an indicator setting means, manipulative means settable tocontrol the extent of movement of the actuator, means including twolevers pivoted together, one of said levers pivoted to the actuator andthe other lever pivoted to the setting means, means to move the actuatorto the position determined by the manipulative means to thereby positionthe end of the lever pivoted thereto to a position commensurate with theset position of the actuator, lockin means normally engaging the settingmeans, to lock the setting means against movement until the actuator isset under control of the manipulative means, means to move the lockingmeans out of engagement with the setting means and into engagement withthe actuator after the actuator has been set under the control of themanipulative means to lock the actuator in set position, and actuatingmeans operable after the actuator has been locked to move the leversinto position where they are in parallel relationship with each other,said parallel relationship being determined by the set position of theactuator whereby the setting means is set into a position commensuratewith the set position of the actuator. 3. In a machine of the classdescribed, the combination of a totalizer actuator, manipulative meansto control difierential movement of the actuator, a settable memberdifierentially settable by the totalizer actuator, a first beam havingone end thereof pivoted to the settable member whereby said one end ofthe beam is diiferentially moved by the settable member, an indicatorfor displaying data corresponding to the differential setting of thetotalizer actuator, a driving member connected to the indicator to setthe indicator into various positions, a second beam having one endthereof connected to the driving member, means to pivotally connect thefirst beam and the second beam together at a point non-axial with thesaid connections of the first beam and the second beam with the settingmeans and driving member, a locking means having a normal position inlocking engagement with the driving member while the settable member ispositioned under control of the actuator and a moved position in lookingengagement with the settable member, after the settable member has beenpositioned under control of the actuator,

and means for moving the two beams into coin-.

i6 cidental positions after the settable member has been locked by thelocking means to thereby move the driving member into a positioncommensurate with the set position of the settable memher.

4. In a machine of the class described, the combination of a totalizeractuator, manipulative means to control differential movement of theactuator, a resilient means to operate the actuator in one direction, asettable member differentially settable by the totalizer actuator, meansnormally restraining the actuator in a home position and operable torelease the actuator for operation by the resilient means and tothereafter restore the actuator to the home position, a first beamhaving one end thereof pivoted to the settable member whereby said oneend of the beam is difierentially moved by the settable member, anindicator for displaying data corresponding to the differential settingof the totalizer actuator, a driving member connected to the.

indicator to set the indicator into various positions, at second beamhaving one end thereof connected to the driving member, means topivotally connect the first beam and the second beam together at a pointnon-axial with the said connections of the first beam and the secondbeam with the setting means and the driving member, respectively, alocking means having a normal position in looking engagement with thedriving member while the settable member is positioned under control ofthe actuator and a moved position in locking engagement with thesettable member after the settable member has been positioned undercontrol of the actuator, and means for moving the two beams intocoincidental position after the settable member has been locked by thelocking means to thereby move the driving member into a positioncommensurate with set position of the settable member, said last namedmeans operable simultaneously with the restoring movement of thetotalizer actuator.

5. In a machine of the class described, a totalizer actuator, anindicator setting member, a stationary stop, a first oscillating bar,two articulated beams located between the stationary stop and said firstoscillating bar, one end of one beam being connected to the totalizeractuator and one end of the other beam being connected to the indicatorsetting member, and a second oscillating bar to control the setting andreturn movements of the totalizer actuator, said first oscillating baroperable after the totalizer actuator has been set to operate said beamsto cause relative movement of both beams until both beams come intocontact with said stationary stop, the relative movement so producedcausing the indicator setting member to move into a positioncommensurate with the setting of the totalizer actuator.

6. In a machine of the class described, a totalizer actuator, anindicator setting member, a stationary stop, a first oscillating bar,two articulated beams located between the stationary stop and said firstoscillating bar, one end of one beam being connected to the totalizeractuator and one end of the other beam being connected to the indicatorsetting member, a second oscillating bar to control the setting andreturn movements of the totalizer actuator, and a locking means to lockthe indicator setting member in set position while the totalizeractuator is being adjusted, said locking means being movable fromengagement with the indicator setting member and into engagement withthetotalizer actuator atter the totalizer actuator has .-.been set, saidfirst oscillating rbar ioperable after the totalizer actuator hasbeenset to operate-said beams to .cause'relative-movement of both beamsuntil both beams come into contact with said-stationary'stop, therelative movementso produced causing the indicator setting member tomove into aposition commensuratewith the setting of the totalizeractuator.

7. In amachine'of the classdescribed, a totalizer actuator comprising amember set under control ofVmanipulative-devices, and a member actuatedby the member set under control .of the manipulative devices, anindicator setting member, a stationary stop, a first oscillating bar,two articulated beams located between the-stationary stoptand said firstoscillating-bar, one end of one beam being connected to the secondmember of the totalizer actuator and the one end of the other beam beingconnected to the indicator settingmember, a lock normally engaged withthe indicator setting member while the totalizer actuator members arebeing adjusted under control of the manipulative devices, said lockbeing movable into engagement with the second member of the totalizeractuator after the totalizer actuator has been positioned under controlof the manipulative devices, and a second oscillating bar to control thesetting and return movements of the totalizer actuator, said firstoscillating bar operable after the totalizer actuator has been set tooperate said beams to cause relative movement of both beams until bothbeams come into contact with said stationary stop, the relative twoarticulated beams located between the sta- 1 tionary stop and said firstoscillating bar, one end of one beam being connected to the controlmember and the other being connected to the indicator setting member,and a second oscillating bar to control the setting and return movermerits of the totalizer actuator, said return movement of the totalizeractuator being efiected independently of the movement of the controlmember set thereby, said first oscillating bar operable after thetotalizer actuator has been set to operate said beams to cause relativemovement between both beams until both beams come into contact with saidstationary stops, the relative movement so produced causing theindicator setting member to move into a position commensurate with thesetting of the totalizer actuator.

'9. In a machine of the class described, a totalizer actuator, a controlmember set under control thereof, a spring to normally maintain anoperating connection between the control member and the totalizeractuator, an indicator setting member, a stationary stop, a firstoscillating bar, two articulated beams located between the stationarystop and said first oscillating bar, one end of one beam being connectedto the control member and one end of the other beam being connected tothe indicator setting member, a lock to lock the control member in aposition into which it is positioned under control of the totalizeractuator so as to prevent the spring from returning the control memberwhile the totalizer actuator is being restored to its home position, asecond oscillating bar to control the setting and return movements ofthe totalizer'actuator independently of the control membensai'd firstoscillating .bar operable after the totalizer actuator has been set andthe control member has been locked in a set position to operate saidbeams to cause relative movement of both beams until the beams both comeinto contact with said stationary stop, the relative movement so produced causing the indicator setting member to move into'a positioncommensurate with the'setting of the control member as positioned undercontrol of the totalizeractuator.

10. In a machine of 'the class described, the combination of a totalizeractuator, manipulative devices comprising a keyboard, a control memberset under control of the totalizer actuator, a spring to cause thecontrol member to follow the differential setting of the totalizeractuator while being set under control of manipulative devicescomprising the keyboard, an indicator setting member, a stationary stop,a first oscil- A lating bar, two articulated beams located between thestationary stop and said firstoscillating bar, one end of one beam beingconnected to the control member and one end of the other beam be ingconnected to the indicator setting member, a lock to lock the controlmember in the position into which it was set under the control of thetotalizer actuator, a second oscillating bar to control the setting andreturn movements of the totalizer actuator, said first oscillating baroperable after the control member has been set under control of thetotalizer actuator to operate said beams to cause relative movement ofboth beams until the beams both come into contact with the stationarystop, the relative movement so pro- .duced causing the indicator settingmember to move into position commensurate with the setting of thetotalizer actuator, said second oscillating bar operating to control therestoring movement of the totalizer actuator immediatel the controlmember has been locked in a set position, said first oscillating baradapted to be restored to its home position after the indicator had beenset into its new position and the said spring adapted to restore thecontrol member into contact with the totalizer actuator after the firstoscillating bar had been restored to its home position.

11. In a machine of the class described, the combination of a totalizeractuator, a control member normally held in engagement with a totalizeractuator so as to be positioned thereby, a spring to normally maintainthe control member in operating contact with the totalizer actuator,said spring permitting return movement of the totalizer actuatorindependently of the return movement of the control member, an indicatorsetting member, a stationary stop, a first oscillating bar, twoarticulated beams located between the stationary stop and said firstoscillating bar, one end of one beam being connected to the controlmember and one end of the other beam being connected to the indicatorsetting member, a second oscillating bar to control the setting andreturn movement of the totalizer actuator, said first oscillating barreceiving its setting member to move into a position commensurate withthe setting of the control member, said oscillating bars adapted to berestored to their normal positions substantially simultaneously.

12. In a machine of the class described, a totalizer actuator, a controlmember set under control of the totalizer actuator, an indicator settingmember, a stationary stop, a first oscillating bar, a second oscillatingbar, said first oscillating bar timed to receive its initial movementafter the second oscillating bar completes its initial movement, andboth oscillating bars timed to receive their return strokes atsubstantially the same time, and two articulated beams located betweenthe stationary stop and said first oscillating bar, one end of one beambeing connected to the control member and one end of the other beambeing connected to the indicator setting member, said second oscillatingbar adapted to control the setting and return movements of the totalizeractuator, said first oscillating bar operable after the totalizeractuator has been set to operate said beams to cause relative movementof both beams until both beams come into contact with said stationarystop, the relative movement so produced causing the indicator settingmember to move into a position commensurate with the setting of thecontrol member and at substantially the same time the totalizer actuatoris being returned to its home position, to thereby reduce the speed ofoperation of the indicator setting mechanism to a minimum.

13. In a machine of the class described, the combination of a totalizeractuator, manipulative devices comprising a keyboard, a control memberset under control of the totalizer actuator, an indicator settingmember, a stationary stop,'a first oscillating bar, two articulatedbeams located between the stationary stop and said first oscillatingbar, one end of one beam being connected to the totalizer control memberand one end of the other beam being connected to the indicator settingmember, a second oscillating bar, a spring for actuating the totalizeractuator into a position as controlled by the manipulative devices, saidspring operable to so adjust the totalizer actuator when the secondoscillating bar receives its initial movement, and said secondoscillating bar adapted to positively return the actuators to their homeposition upon return movement of the second oscillating bar, said firstoscillating bar operable after the totalizer actuator has been set undercontrol of the manipulative devices to operate said beams to causerelative movement of both beams until the beams both come into contactwith said stationary stop, the relative movement so produced causing theindicator setting member to move into a position commensurate with thesetting of the control member, said oscillating bars operatingsequentially during their forward strokes, and substantiallysimultaneously during their return strokes to permit the totalizeractuator to be restored prior to the restoring movement of the controlmember, and a spring connecting the control member With the totalizeractuator for effecting the return movement of the control member uponbeing released by the return movement of the first oscillating bar.

14. In a differential mechanism for a machine the extent of movement ofthe control member, means including two levers pivoted together, one ofsaid levers pivoted to the control member and the other of said leverspivoted to the setting means, means to move the control member totheposition determined by the manipulative means to thereby position theend of the lever pivoted thereto into a position commensurate with theset position of the control member, and actuating means to move thelevers into positions wherein they are in parallel relationship Witheach other, said parallel relationship being determined by the setposition of the control member whereby the setting means is set into aposition commensurate with the set position of the control member.

15. In a difierential mechanism for a machine of the class describedhaving an indicator and a totalizer, the combination of a differentiallysettable control member, an indicator setting means, manipulative meanssettable to control the extent of movement of the control member, meansincluding two levers pivoted together, one of said levers pivoted to thecontrol member and the other lever pivoted to the setting means, meansto move the control member to the position determined by themanipulative means to thereby position the end of the lever pivotedthereto to a position commensurate with the set position of the controlmember, locking means normally engaging the setting means, to lock thesetting means against movement until the control member is set undercontrol of the manipulative means, means to move the locking means outof engagement with the setting means and into engagement with thecontrol member after the control member has been set under the controlof the manipulative means to lock the control member in set position,and actuating means operable after the control member has been locked tomove the levers into position Where they are in parallel relationshipwith each other, said parallel relationship being determined by the setposition of the control member whereby the setting means is set into aposition commensurate with the set position of the control member.

16. In a machine of the class described, a differentially settablecontrol member, an indicator setting member, a stationary stop, a firstoscillating bar, two articulated beams located between the stationarystop and said first oscillating bar, one end of one beam being connectedto the control member and one end of the other beam being connected tothe indicator setting member, and a second oscillating bar to controlthe setting and return movements of the control member, said firstoscillating bar operable after the control member has been set tooperate said. 7

beams to cause relative movement of both beams until both beams comeinto contact with said stationary stop, the relative movement so pro--duced causing the indicator setting member to move into a positioncommensurate with the set- 21 and a locking means to lock the indicatorsetting member in set position to which the control member is beingadjusted, said locking means being movable from engagement with theindicator setting member and into engagement with the control memberafter the control member has been set, said first oscillating baroperable after the control member has been set to operate said beams tocause relative movement of both beams until both beams come into contactwith said stationary stop, the relative movement so produced causing theindicator setting member to move into a position commensurate with thesetting of the control member,

LOUIS EMILE ZURBUCI-IEN.

22 REFERENCES CITED The following references are of record in the fileof this patent:

UNITED STATES PATENTS Certificate of Correction Patent No. 2,571,645October 16, 1951 LOUIS EMILE ZURBUCHEN It is hereby certified that errorappears in the above numbered patent requiring correction as follows:

In the grant, line 1, name of inventor, for Louis Emile Zurbachen readLouis Em/t'le Zurbuchen; in the printed specification, column 2, line29, for mounting read counting; column 8, line 60, for shaft 66 readshaft 56; column 14, line 66, for selector read selected and that thesaid Letters Patent should be read as corrected above, so that the samemay conform to the record of the case in the Patent Ofiice.

Signed and sealed this 19th day of February, A. D. 1952.

THOMAS F. MURPHY,

Assistant Oommiasioner of Patents.

